Biz Write-Offs LogoBiz Write-Offs

Energy-efficient commercial building (179D)

Up to about $5.80/sq ft

Can You Write Off Energy-efficient Commercial Building?

Short answer: Yes: 179D gives a deduction for energy-efficient lighting, HVAC, and envelope upgrades, but only for construction beginning before July 1, 2026.

The deduction depends on energy savings and prevailing wage rules.

Records to keep: Keep receipts or invoices, proof of payment, and a short note of the business purpose.